Alpinestars class-leading Racer apparel collection has undergone a design evolution with the introduction of the new Racer Tech line. The Racer Tech Pants feature a new advanced flexible design construction with four-way stretch fabric and heavy poly-fabric main shell offering high levels of flexibility and durability. A leather leg panel protects against heat while the innovative 3D knee construction gives plenty of freedom of movement for the legs. Comes in the unique Tech colorways. Features Back yoke is made of solid poly-fabric to guarantee freedom of movement. Advanced four-way stretch main construction for freedom of movement with a race-derviced fit. Soft stretch back panel from the upper thigh to the bottom of the leg provides increased comfort and flexibility. Internal comfort liner made of an extensive lightweight mesh with stretch panel inserts for improved feel and function. Innovative, strategically positioned four-way stretch panels for freedom of movement and riding fit. Pre-curved, ergonomic leg construction for improved performance in the riding position. Heavy poly-fabric reinforcement on the seat area and inner leg panels provides superior abrasion resistance. Leather reinforced inner-leg panels for heat resistance, grip and comfort. Innovative 3D knee construction and expansion panel designed to accommodate knee protectors. 3D injection molded rubber logos for durability. Ratchet closure with dual waist adjustment pull-tabs for safe, personalized fit. Convenient interior hip pocket for key/coin storage.